Hello All,
I am installing Nutanix on a four node cluster. Each cluster has three HDDs, 1 NVMe SSD and 1 SATADOM for the OS. I was intending for the SSD to be my hot tier and the HDD to serve as the cold tier.
When installing I see that it’s required for the CVM to be assigned to a disk. This seems to indicate that I will likely need to add an additional drive to the layout to dedicate to the CVM or does the CVM storage double as the cache tier? I do have an additional spot for a second SATADOM that I could use for the CVM storage however I cannot find any guidance on its required size.
Thanks in advance!
| Storage devices, Cold Tier | 500 GB or greater available Maximum 18 TB (3 x 6 TB HDDs) | Hard disk drive (HDD) or solid-state drive (SSD) for cold-tier storage Note: Ensure that the drives are attached to the node through a Host Bus Adapter. |
| Storage devices, Hot Tier Flash | Single 200 GB SSD or greater | Note: Ensure that the drives are attached to the node through a Host Bus Adapter. |
| Hypervisor Boot Device | One 32 GB capacity device per node. It can be an external (such as USB flash drive) or internal device (such as SATA DOM, M.2 SSD or SATA SSD/HDD). | Nutanix has successfully tested and used external USB drives with caveats, as well as internal devices such as a SATA DOM with AHV. Nutanix recommends drives with high I/O speed and reliability. Note: Nutanix recommends to use USB 3.0 drives or higher to avoid hypervisor imaging timed out issues. |